ES2335873T3 - VALVE SYSTEM. - Google Patents
VALVE SYSTEM. Download PDFInfo
- Publication number
- ES2335873T3 ES2335873T3 ES03002950T ES03002950T ES2335873T3 ES 2335873 T3 ES2335873 T3 ES 2335873T3 ES 03002950 T ES03002950 T ES 03002950T ES 03002950 T ES03002950 T ES 03002950T ES 2335873 T3 ES2335873 T3 ES 2335873T3
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- ES
- Spain
- Prior art keywords
- valve
- valves
- eccentric
- coupling
- valve system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims abstract description 40
- 238000010168 coupling process Methods 0.000 claims abstract description 40
- 238000005859 coupling reaction Methods 0.000 claims abstract description 40
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000003042 antagnostic effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/10—Connecting springs to valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/22—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by rotary motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/38—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/69—Lift valves, e.g. poppet valves having two or more valve-closing members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2301/00—Using particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2800/00—Methods of operation using a variable valve timing mechanism
- F01L2800/10—Providing exhaust gas recirculation [EGR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/72—Housings
- F02M26/73—Housings with means for heating or cooling the EGR valve
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanically-Actuated Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
Sistema de válvulas de realimentación de gas de escape para motores de combustión interna para la realimentación de gas de escape, con un eje de accionamiento (5), una unidad de acoplamiento (10) accionada de forma excéntrica y por lo menos dos válvulas, en el cual cada una de las válvulas se compone por lo menos de un vástago de válvula (19), un cuerpo de cierre de válvula (20) y un asiento de válvula (21) y en el cual la unidad de acoplamiento (10) establece una unión funcional entre la unidad de accionamiento (1) y los por lo menos dos vástagos de válvula (19) de tal manera que el movimiento giratorio de la unidad de accionamiento (1) se transforma en un movimiento lineal de los vástagos de válvula (19), caracterizado porque las por lo menos dos válvulas, una unidad de accionamiento (1), el eje de accionamiento (5) y la unidad de acoplamiento (10) accionada de forma excéntrica están dispuestos en una carcasa (4, 22), en el cual las por lo menos dos válvulas están dispuestas en un plano que discurre perpendicularmente al eje de accionamiento (5) de la unidad de accionamiento (1) y separan por lo menos dos tramos de gas de escape en la zona de entrada del sistema de válvulas de realimentación de gas de escape.Exhaust gas feedback valve system for internal combustion engines for exhaust gas feedback, with a drive shaft (5), an eccentrically actuated coupling unit (10) and at least two valves, in which each of the valves consists of at least one valve stem (19), a valve closure body (20) and a valve seat (21) and in which the coupling unit (10) establishes a functional connection between the drive unit (1) and the at least two valve stems (19) such that the rotational movement of the drive unit (1) is transformed into a linear movement of the valve stems ( 19), characterized in that the at least two valves, a drive unit (1), the drive shaft (5) and the eccentrically actuated coupling unit (10) are arranged in a housing (4, 22), in which the at least two valves are n arranged in a plane that runs perpendicular to the drive shaft (5) of the drive unit (1) and separates at least two sections of exhaust gas in the inlet zone of the exhaust gas feedback valve system.
Description
Sistema de válvulas.Valve system
La invención se refiere a un sistema de válvulas de realimentación de gas de escape para motores de combustión interna para la realimentación de gas de escape, con un eje de accionamiento, una unidad de acoplamiento accionada de forma excéntrica y por lo menos dos válvulas, en el cual cada una de las válvulas se compone por lo menos de un vástago de válvula, un cuerpo de cierre de válvula y un asiento de válvula y en el cual la unidad de acoplamiento establece una unión funcional entre la unidad de accionamiento y los por lo menos dos vástagos de válvula de tal manera que el movimiento giratorio de la unidad de accionamiento se transforma en un movimiento lineal de los vástagos de válvula.The invention relates to a valve system exhaust gas feedback for combustion engines internal for exhaust gas feedback, with an axis of drive, a coupling unit actuated eccentric and at least two valves, in which each of the valves is composed of at least one valve stem, a valve closure body and a valve seat and in which the coupling unit establishes a functional union between the drive unit and at least two valve stems such that the rotating movement of the unit drive is transformed into a linear movement of the stems valve.
El principio de un sistema de válvulas de este tipo se da a conocer por ejemplo en el documento US 4,027,636. En este sistema se accionan a través de un eje de levas dos válvulas de las cuales una es una válvula de realimentación de gas de escape y la otra está dispuesta en el conducto de aspiración de aire y sirve por lo tanto como estrangulador de aire. No obstante, no se da a conocer el desacoplamiento entre dos tramos de gas de escape así como una regulación de un caudal de gas de escape en dos tramos de gas de escape mediante un accionamiento regulable. También es una desventaja el gran espacio de construcción requerido.The principle of a valve system of this type is disclosed for example in US 4,027,636. In this system is operated through a cam shaft two valves of which one is an exhaust gas feedback valve and the other is arranged in the air intake duct and serves Therefore as an air choke. However, it is not given to know the decoupling between two sections of exhaust gas as well as a regulation of an exhaust gas flow rate in two sections of exhaust gas by means of an adjustable drive. It is also a disadvantage the large construction space required.
En las solicitudes de patente europea EP 10 91 112 A2 y EP 0 971 113 A2 se describen válvulas de realimentación de gas de escape AGR que presentan en lo esencial una unidad de accionamiento, una unidad de engranaje con un apoyo, dispuesto de forma excéntrica mediante un pivote, como parte de acoplamiento y una válvula con vástago de válvula, elemento de cierre de válvula y asiento de válvula, estando la unidad de engranaje en unión funcional con el vástago de válvula para poder abrir y cerrar de esta manera la válvula. Asimismo, presenta una abertura de salida y una abertura de entrada.In European patent applications EP 10 91 112 A2 and EP 0 971 113 A2 describe feedback valves of exhaust gas AGR which essentially have a unit of drive, a gear unit with a support, arranged eccentric shape by means of a pivot, as a coupling part and a valve with valve stem, valve closure element and valve seat, the gear unit being in union functional with the valve stem to be able to open and close This way the valve. It also has an exit opening and an entrance opening.
No obstante, frecuentemente es necesario desacoplar entre sí los tramos de gas de escape existentes en un motor de combustión interna. Esto es el caso por ejemplo en motores con un tipo de construcción en V en los cuales se realimenta el gas de escape de ambos bancos de cilindros. Por lo tanto es necesario usar una válvula para cada tramo de gas de escape a fin de realimentar el gas de escape. Cada válvula se acciona mediante un accionamiento propio. Esto origina elevados costes y un montaje complejo. Adicionalmente es preciso equipar cada válvula individual con sensores propios para detectar la carrera de válvula y conectarlos con la unidad de evaluación.However, it is often necessary decouple the existing exhaust gas sections in a Internal combustion engine. This is the case for example in engines with a type of V-construction in which the gas is fed back Exhaust of both banks of cylinders. Therefore it is necessary use a valve for each section of exhaust gas in order to feed the exhaust gas. Each valve is operated by a own drive This results in high costs and assembly complex. Additionally, each individual valve must be equipped with own sensors to detect the valve stroke and connect them with the evaluation unit.
Basándose en lo anteriormente expuesto, el objetivo de la presente invención consiste en crear un sistema de válvulas que evite las desventajas anteriormente mencionadas, presente un tipo de construcción sencillo y pueda fabricarse de forma económica.Based on the above, the objective of the present invention is to create a system of valves that avoid the aforementioned disadvantages, present a simple type of construction and can be manufactured from economic form
Este objetivo se consigue con la parte caracterizadora de la reivindicación principal.This goal is achieved with the part characterizing the main claim.
La unidad de acoplamiento se compone ventajosamente de un elemento de acoplamiento accionado de forma excéntrica por el eje de accionamiento y de por lo menos dos tramos de acoplamiento firmemente unidos con el elemento de acoplamiento, en la que los tramos de acoplamiento se componen cada uno de un primer excéntrico, un eje de unión, dispuesto en un apoyo, que está firmemente unido en su primer extremo con el primer excéntrico y en su segundo extremo con un segundo excéntrico, así como de un elemento de apoyo unido firmemente con el segundo excéntrico.The coupling unit is composed advantageously of a coupling element actuated eccentric by the drive shaft and at least two sections coupling firmly connected with the coupling element, in which the coupling sections are each composed of a first eccentric, a joint shaft, arranged in a support, which is firmly attached at its first end with the first eccentric and in its second end with a second eccentric, as well as a support element firmly connected with the second eccentric.
Un sistema de válvulas configurado de esta manera necesita para el accionamiento de varias válvulas sólo una unidad de accionamiento y, dado el caso, una unidad de sensores. Asimismo, se necesita sólo una carcasa para las válvulas, lo que permite fijar el sistema de válvulas completamente montado en el tramo de aspiración o en los tramos de gas de escape, respectivamente. De este modo se reduce el volumen de trabajo tanto para el montaje mecánico como para el montaje eléctrico, obteniéndose adicionalmente a los costes de componentes reducidos también una reducción de los costes de montaje.A valve system configured from this way you need to drive several valves only one drive unit and, if necessary, a sensor unit. Also, only one valve housing is required, which allows to fix the valve system completely mounted on the suction section or in the sections of exhaust gas, respectively. This reduces the volume of work both for mechanical assembly as for electrical assembly, in addition to the reduced component costs also a reduction in assembly costs.
Además es posible accionar las válvulas en función de la posición angular del respectivo primer excéntrico en relación con el respectivo segundo excéntrico de un tramo de acoplamiento tanto de manera sincronizada, es decir, con abertura y cierre simultáneo de las válvulas, en particular en motores de combustión interna con un tipo de construcción en V, o de forma asincrónica, es decir, con abertura y cierre temporalmente desplazados de las válvulas. De esta manera se crea una multiplicidad de posibilidades de montaje para un sistema de válvulas de este tipo.It is also possible to operate the valves in function of the angular position of the respective first eccentric in relationship with the respective second eccentric of a section of coupling both synchronously, that is, with opening and simultaneous closure of the valves, particularly in engines of internal combustion with a type of construction in V, or of form asynchronous, that is, with opening and closing temporarily displaced from the valves. This creates a multiplicity of mounting possibilities for a system of valves of this type.
Debido a que como elementos de apoyo se emplean rodamientos o cojinetes de deslizamiento es posible crear una forma de realización particularmente sencilla y robusta del sistema de válvulas.Because they are used as support elements bearings or sliding bearings it is possible to create a shape particularly simple and robust implementation of the system valves
Otra forma particularmente sencilla del apoyo del eje de unión de los dos excéntricos se consigue por el hecho de que el apoyo está unido con la carcasa del sistema de válvulas. Los rodamientos están dispuestos ventajosamente en correderas firmemente unidas con los vástagos de válvula, por lo que se obtiene una guía forzosa de los vástagos de válvula.Another particularly simple form of support of the union axis of the two eccentrics is achieved by the fact that the support is connected to the valve system housing. The bearings are advantageously arranged in slides firmly connected with the valve stems, so it is obtained a forced guide of the valve stems.
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En el caso de un montaje de este sistema de válvulas en tubos de aspiración de plástico o de magnesio es posible integrar en la carcasa una refrigeración por agua.In the case of an assembly of this system of valves in plastic or magnesium suction tubes is possible integrate water cooling into the housing.
De esta manera se crea por lo tanto un sistema de válvulas con un tipo de construcción sencillo y robusto y además con un peso reducido. Asimismo, se consigue una elevada flexibilidad con respecto a la instalación y el premontaje. Debido a la guía forzosa también es posible cerrar las válvulas activamente y mantener las mismas también cerradas.In this way a system is therefore created of valves with a simple and robust type of construction and also With a reduced weight. Also, high flexibility is achieved Regarding installation and pre-assembly. Because of the guide It is also possible to actively close the valves and keep them also closed.
En los dibujos se muestra un ejemplo de realización de un sistema de válvulas de este tipo que se describe a continuación.An example of realization of a valve system of this type described then.
Fig. 1: Vista en perspectiva de un sistema de válvulas conforme a la invención con la carcasa en vista en corte y sin tapa de carcasa.Fig. 1: Perspective view of a system of valves according to the invention with the housing in section view and without housing cover.
Fig. 2: Vista en perspectiva de un sistema de válvulas conforme a la invención sin la unidad de accionamiento, con la carcasa en vista en corte y sin tapa de carcasa.Fig. 2: Perspective view of a system of valves according to the invention without the drive unit, with the housing in view in section and without housing cover.
Fig. 3: Vista en perspectiva de un detalle del sistema de válvulas sin tapa de carcasa y en particular con una unidad de acoplamiento según la invención y con una corredera para la guía forzosa, la dirección de movimiento de los componentes individuales del dispositivo de acoplamiento se señala para mayor claridad con flechas.Fig. 3: Perspective view of a detail of the valve system without housing cover and in particular with a coupling unit according to the invention and with a slide for the forced guide, the direction of movement of the components Individual coupling device is designated for greater clarity with arrows.
Fig. 4: Vista en perspectiva de una parte accionada de la unidad de acoplamiento en el modo de servicio asincrónico.Fig. 4: Perspective view of a part operated of the coupling unit in the service mode asynchronous.
El sistema de válvulas representado se compone de una unidad de accionamiento 1 que comprende un motor eléctrico 2 con un engranaje planetario 3 y un eje de accionamiento 5 que sale de una carcasa de motor 4. En el extremo del eje de accionamiento 5, que sale de la carcasa de motor 4, está montado de forma fija un arrastrador excéntrico 6 que está unido de forma giratoria a través de una clavija 7 con un elemento de acoplamiento 8 dispuesto perpendicularmente al eje de accionamiento 5. El movimiento giratorio del eje de accionamiento 5 se transmite a través de este elemento de acoplamiento a dos tramos de acoplamiento 9 con el mismo tipo de construcción. El arrastrador 6 dispuesto de forma excéntrica, la clavija 7, el elemento de acoplamiento 8 y los dos tramos de acoplamiento 9 forman una unidad de acoplamiento 10. Cada uno de los dos tramos de acoplamiento 9 se compone de un primer excéntrico 11, unido a su vez a través de una clavija 12 con el elemento de acoplamiento 8, así como de un eje de unión 14, dispuesto en un apoyo 13 montado de manera fija con respecto al eje de accionamiento 5, que une el primer excéntrico 11 con el segundo excéntrico 15. Este segundo excéntrico 15 está unido a través de una clavija 16 con un elemento de apoyo, en este caso un rodamiento 17. Este rodamiento 17 constituye al mismo tiempo el elemento terminal de la unidad de acoplamiento 10 o de los dos tramos de acoplamiento 9, respectivamente. Los dos rodamientos 17 están dispuestos cada uno en una respectiva corredera 18 que transmite el movimiento de la unidad de acoplamiento 10 o del rodamiento 17, respectivamente, a dos vástagos de válvula 19 guiados de manera forzosa mediante la corredera 18.The valve system represented is composed of a drive unit 1 comprising an electric motor 2 with a planetary gear 3 and a drive shaft 5 that comes out of a motor housing 4. At the end of the drive shaft 5, which leaves the motor housing 4, is fixedly mounted a eccentric drag 6 which is rotatably connected through of a pin 7 with a coupling element 8 arranged perpendicular to the drive shaft 5. The movement Rotating drive shaft 5 is transmitted through this coupling element to two coupling sections 9 with the same type of construction. The drag 6 arranged so eccentric, pin 7, coupling element 8 and both coupling sections 9 form a coupling unit 10. Each one of the two coupling sections 9 consists of a first eccentric 11, in turn connected through a pin 12 with the coupling element 8, as well as a connecting shaft 14, arranged on a support 13 fixedly mounted with respect to the shaft drive 5, which joins the first eccentric 11 with the second eccentric 15. This second eccentric 15 is joined through a pin 16 with a support element, in this case a bearing 17. This bearing 17 constitutes at the same time the element terminal of the coupling unit 10 or of the two sections of coupling 9, respectively. The two bearings 17 are each arranged in a respective slide 18 that transmits the movement of coupling unit 10 or bearing 17, respectively, to two valve stems 19 guided in a manner forced by the slide 18.
En la figura 3 se señalan nuevamente mediante flechas las direcciones de movimiento individuales de los componentes de la unidad de acoplamiento 10. En detalle se transforma el movimiento giratorio del eje de accionamiento 5 mediante el arrastrador 6, dispuesto de forma excéntrica, en lo esencial en un movimiento horizontal del elemento de acoplamiento 8. A través de los dos excéntricos 11 y 15 y el eje de unión 14, este movimiento horizontal se transforma mediante el eje de unión giratorio fijo 14 en un movimiento giratorio del segundo excéntrico 15. Este transmite a su vez este movimiento a los rodamientos 17, de modo que resulta un movimiento en lo esencial vertical de las correderas 18 y, de esta manera, de los vástagos de válvula 19 unidos de forma fija con las correderas. Mediante este movimiento vertical se presionan dos platos de válvula 20, que están firmemente unidos con los vástagos de válvula 19, contra sus asientos de válvula 21 que forman parte de un componente de carcasa 22. Mediante el movimiento del eje de accionamiento 5 en dirección opuesta se levantan los platos de válvula de los asientos de válvula 21, por lo que se establece una unión para fluidos entre la abertura de salida 23 y la abertura de entrada 24. Para la reposición sin corriente del plato de válvula 20 está previsto un elemento de resorte 25 que mantiene el vástago de válvula 19 bajo tensión previa en dirección al rodamiento 17. Esta tensión previa se obtiene mediante la incorporación del elemento de resorte 25 entre una superficie de apoyo 26 en la parte de carcasa 22 y un anillo de apoyo 27 que forma parte de la corredera 18 o es un plato de resorte dispuesto debajo de la corredera 18 como en el ejemplo de realización. En el caso de un fallo del motor eléctrico 2, se ejerce mediante la fuerza del elemento de resorte 25 una carga en el anillo de apoyo 27 de la corredera 18 en dirección hacia el rodamiento 17 que presiona el plato de válvula 20 a través del vástago de válvula contra el asiento de válvula 21.In figure 3 they are indicated again by arrows the individual directions of movement of the components of the coupling unit 10. In detail it transforms the rotary movement of drive shaft 5 by means of the drag 6, arranged eccentrically, in essential in a horizontal movement of the coupling element 8. Through the two eccentrics 11 and 15 and the joint shaft 14, this horizontal movement is transformed by the union axis fixed swivel 14 in a rotating motion of the second eccentric 15. This in turn transmits this movement to the bearings 17, of so that a movement in the essentially vertical of the slides 18 and, thus, of the valve stems 19 fixedly connected with the slides. Through this movement vertical two valve plates 20 are pressed, which are firmly connected with the valve stems 19, against their valve seats 21 that are part of a housing component 22. By moving the drive shaft 5 in the direction opposite the valve plates of the seats of valve 21, whereby a fluid joint is established between the exit opening 23 and entry opening 24. For the no replacement of the valve plate 20 is provided spring element 25 that keeps the valve stem 19 low pre-tension in the direction of the bearing 17. This pre-tension is obtained by incorporating the spring element 25 between a bearing surface 26 in the housing part 22 and a support ring 27 that is part of the slide 18 or is a plate spring arranged under the slide 18 as in the example of realization. In the event of a failure of the electric motor 2, it exerts a load on the force of the spring element 25 support ring 27 of the slide 18 towards the bearing 17 that presses the valve plate 20 through the valve stem against valve seat 21.
La parte de carcasa 22 está construida de tal manera que comprende no sólo el asiento de válvula 21, la abertura de salida 23, la abertura de entrada 24 así como la superficie de apoyo 26 para el elemento de resorte 25, sino que presenta adicionalmente dos bases de alojamiento de apoyo 28 para alojar los apoyos 13 de los ejes de unión 14. El sistema de válvulas completo se cierra mediante una tapa de carcasa no representada en los dibujos.The housing part 22 is constructed in such a way way comprising not only the valve seat 21, the opening of outlet 23, the inlet opening 24 as well as the surface of support 26 for spring element 25, but presents additionally two support housing bases 28 to accommodate the 13 supports of the connecting shafts 14. The complete valve system it is closed by a housing cover not shown in the drawings.
Debido a la separación entre los tramos de gas de escape en la zona de entrada, las válvulas pueden accionarse en función de la posición del respectivo primer excéntrico 11 en relación con el segundo excéntrico 15 de forma sincrónica, lo que es particularmente útil en motores de combustión interna con un tipo de construcción en V, o de manera asincrónica como se muestra en la figura 4. El segundo excéntrico 15 de un tramo de acoplamiento 9 está girado en 180º en comparación con el excéntrico 15 del otro tramo de acoplamiento, por lo que se consigue un movimiento antagónico de los dos vástagos de válvula 19. No obstante, en función de la aplicación también es concebible cualquier otra posición angular de los dos excéntricos 15 uno en relación con otro.Due to the separation between the gas sections Exhaust in the inlet zone, the valves can be operated in function of the position of the respective first eccentric 11 in relationship with the second eccentric 15 synchronously, which It is particularly useful in internal combustion engines with a type V-shaped, or asynchronously as shown in the Figure 4. The second eccentric 15 of a coupling section 9 it is rotated 180º compared to the eccentric 15 of the other coupling section, so that a movement is achieved antagonistic of the two valve stems 19. However, in application function is also conceivable any other angular position of the two eccentrics 15 one in relation to other.
Ventajosamente es posible integrar en la carcasa una refrigeración por agua, lo que permite montar esta válvula en su uso como válvula de realimentación de gases de escape también en tubos de aspiración de plástico o de magnesio.Advantageously it is possible to integrate into the housing water cooling, allowing this valve to be mounted on its use as an exhaust gas feedback valve also in suction tubes of plastic or magnesium.
Con la realización según la invención se presenta un tipo de construcción que, gracias al empleo de la unidad de acoplamiento, permite accionar de manera independiente entre sí dos o más válvulas mediante un accionamiento de regulador. Una realización de este tipo reduce los costes, el espacio de construcción y el número de componentes y, por lo tanto, el peso. Asimismo, las válvulas se cierran activamente mediante la guía forzosa y se mantienen también en esta posición de cierre.With the embodiment according to the invention, presents a type of construction that, thanks to the use of the unit coupling, allows to operate independently of each other two or more valves by means of a regulator drive. A realization of this type reduces costs, the space of construction and the number of components and, therefore, the weight. Also, the valves are actively closed by the guide forced and also kept in this closed position.
Modificaciones respecto a la forma de realización, por ejemplo una carcasa compuesta de varias partes u otra forma de realización de las válvulas, por ejemplo como válvula cónica u otras, no limitan el campo de protección de la invención.Modifications regarding the form of embodiment, for example a housing composed of several parts or another embodiment of the valves, for example as a valve conical or others, do not limit the field of protection of the invention.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10221711 | 2002-05-16 | ||
| DE10221711A DE10221711A1 (en) | 2002-05-16 | 2002-05-16 | valve system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2335873T3 true ES2335873T3 (en) | 2010-04-06 |
Family
ID=29265314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES03002950T Expired - Lifetime ES2335873T3 (en) | 2002-05-16 | 2003-02-11 | VALVE SYSTEM. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1362985B1 (en) |
| DE (2) | DE10221711A1 (en) |
| ES (1) | ES2335873T3 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1793114B1 (en) * | 2005-12-02 | 2013-05-15 | Behr Thermot-tronik GmbH | Apparatus, in particular exhaust gas recirculation valve device, for controlling a fluid flow |
| DE102006053755A1 (en) * | 2005-12-02 | 2007-08-09 | Behr Thermot-Tronik Gmbh | Double valve for a device for exhaust gas recirculation |
| DE102006023652B4 (en) * | 2006-05-18 | 2008-10-30 | Esa Patentverwertungsagentur Sachsen-Anhalt Gmbh | Electromotive device for actuating gas exchange valves |
| DE102008005591A1 (en) | 2008-01-22 | 2009-07-23 | Bayerische Motoren Werke Aktiengesellschaft | Valve device for an exhaust gas recirculation device |
| DE102008027490A1 (en) | 2008-06-10 | 2009-12-31 | Pierburg Gmbh | valve system |
| DE102008030785B4 (en) | 2008-06-28 | 2012-10-31 | Pierburg Gmbh | Exhaust gas recirculation device for an internal combustion engine |
| DE102009036284A1 (en) | 2009-08-06 | 2011-02-24 | Pierburg Gmbh | Valve device for internal combustion engine, has channel, which is subdivided into two channels, two passages and two stroke valves which control passages and are connected firmly with moving transmission element |
| DE102009053428A1 (en) | 2009-11-19 | 2011-06-09 | Pierburg Gmbh | Actuator for converting a rotary motion into a linear motion |
| DE102009056251B4 (en) * | 2009-12-01 | 2014-01-09 | Pierburg Gmbh | Valve device for an internal combustion engine |
| DE102010006037B4 (en) | 2010-01-27 | 2013-01-17 | Pierburg Gmbh | Valve device for an internal combustion engine |
| DE102010050784A1 (en) * | 2010-11-10 | 2012-05-10 | Pierburg Gmbh | locking device |
| FR2983252B1 (en) * | 2011-11-25 | 2015-01-30 | Valeo Systemes De Controle Moteur | CONTROL VALVE FOR EXHAUST GAS RECIRCULATION SYSTEM OF INTERNAL COMBUSTION ENGINE |
| DE102013206481A1 (en) * | 2013-04-11 | 2014-10-16 | Mahle International Gmbh | valve means |
| DE102013215164A1 (en) * | 2013-08-01 | 2015-02-19 | Continental Automotive Gmbh | Device for controlling an intercooler arranged in an intake passage of an internal combustion engine and method for operating such a device |
| CN103939170A (en) * | 2014-03-07 | 2014-07-23 | 同济大学 | Controllable valve mechanism used for two-stroke free piston engine-electric generator system |
| DE102014117309B4 (en) | 2014-11-26 | 2021-02-04 | Pierburg Gmbh | Valve device for exhaust gas recirculation on an internal combustion engine |
| DE102015116872B4 (en) * | 2015-10-05 | 2019-11-28 | Pierburg Gmbh | Valve for an internal combustion engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51138228A (en) * | 1975-05-26 | 1976-11-29 | Nissan Motor Co Ltd | Exhaust circulation device |
| US6012437A (en) * | 1998-07-06 | 2000-01-11 | Eaton Corporation | EGR system with improved control logic |
| ES2214998T3 (en) * | 1999-10-05 | 2004-10-01 | Pierburg Gmbh | VALVE UNIT, COMBUSTION AIR SUCTION CHANNEL SECTION, ASY AS EXHAUST GAS RECYCLING UNIT FOR INTERNAL COMBUSTION ENGINES. |
| DE19948379B4 (en) * | 1999-10-07 | 2009-11-05 | Linde Material Handling Gmbh | Hydraulic control valve |
| JP3597453B2 (en) * | 2000-09-22 | 2004-12-08 | 株式会社市丸技研 | Direct acting electric valve |
-
2002
- 2002-05-16 DE DE10221711A patent/DE10221711A1/en not_active Withdrawn
-
2003
- 2003-02-11 ES ES03002950T patent/ES2335873T3/en not_active Expired - Lifetime
- 2003-02-11 EP EP03002950A patent/EP1362985B1/en not_active Expired - Lifetime
- 2003-02-11 DE DE50312149T patent/DE50312149D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1362985B1 (en) | 2009-11-25 |
| EP1362985A2 (en) | 2003-11-19 |
| DE50312149D1 (en) | 2010-01-07 |
| EP1362985A3 (en) | 2007-08-29 |
| DE10221711A1 (en) | 2003-11-27 |
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